If I were you, I would buy a big house.

如果我是你的话，我会买一间大一点的房子。

youdao

Or If I were a millionaire, I would buy a big house in the country.

如果我是百万富翁，我就在乡村买座大房子。

youdao

If I were rich, I would buy a big house for my family.

要是我成了富人，就能给我的家人买一幢大房子了。

If I were 实战 - SpeakingMax英语口语达人